Tire lock



Oct. 5 1926.

B. FIERRO TRE LOCK WITNESSES ATTORNEYS Patented Oct. 5, 1925.

BELISARIO FIERRO, OF FORTBL'ISS, TXS.

TIRE LOCK:

Applicationled Novemberll. 19251'l Serial-Noi 68,351.

My. invention relatesv to improvements-in locking. devices for preventing unauthorized removal of. an automobile tire from a wheel rim. ofthe automobile, and it consists in the combinations, constructions and arrange ments Lherein described and claimed.

An object; of. the invention is the' pro vision of a simple, reliable and eicient locking device which :is adapted to be applied to thevalve stem of av tire which has been mounted on an'automobile wheel and which, when soiapplied, will prevent the unauthorized'removalzof.- the tire from the wheel.

A further object of the invention is the provision .of a. tirelock which f. embodies key -controlled locking mechanism for engaging with :an externally threaded tire valve stem or-'like tubular member so that the locking device'cannot; be displaced from the tire valve-.stem or.: like member until the locking mechanism has'been actuated by. the key as required to effect the release ofthe tire valve stem or like member from the locking mechanism.

Av still. furtherY object ofthe invention is the provision otra tire lock ot the character. described which is compact in form and whenzapplied to the valve stem of a tire which is mounted onan automobile wheel will .be supported at the innerside of the rim ofthe wheel and will not interfere with. the inflation or deflation of the. tire or theuse oftheiwheeliin an ordinary manner.

Other objects and advantages of the in; vention .willbe apparent from the following, description, consideredin. conjunction with. the accompanying.drawings, in which- Figure lois a persplectiverview'of the improved lockappliedito Vthe valve stem of tire on anrautomobile wheel7 only a portion ofltheaautomobile wheel and a like portion ofi the tirebeing shown, the keyvt'or the lock t also being shown,

Figure 2 is a plan view of the look with certain parts thereolthat are housed within the casing indicatedfby dash lines,

Figure 3.is a .relatively enlargedlongitudinal vertical section through the lock, substantiallyalong. the linerS-B of Figure 2,

Figurelis a horizontal-section throughy the lock casing, the remaining elements of: the lockbeing shown in plan.

The casing,y of the lock comprises two telescopicy sections, one of which may bel termedthe lowerseetion and the other the topzsecton. The .loweirsection comprises a bottom 1.2 which isflsubstantially: rectangular. in 1 configuratiom and from'. which l a pairy ofi sidey membersi. and aN back member aref'.

upstanding; Thetop section of. the lockcase` comprisesfa top niemb'erifl which alsoislsubstantiallyrectangular: inI configuration and? whichfhaslside members: 5 dependingsfrom two .oppositemarginalled'ges thereofin posi tion to straddle the sidemembers 122 of the' lowe-rf'section of thelockcasef.. The two :sec-l tions Y of` the loc'k case. arelv secured..together-` in i anyv suitable known manner-5 i asfby welding,` after the. internal mechanism fofthe lock i hasbeen disposed within .the casing` and .the z casing thus producedv willi be;r open. atits frontend and swill ybefclosed at its top7 Lbot:- tom, i sides and f back.;A

A stationary lock memberior'shackle 6 isr, substantially Uf'shaped andt has ay pair-'ofi arms 7 u which entendlwithin' the lock casina;

ati the front' of the .latterfan'dzare secure' totherb'ot-tom ofthe' lock casing4 by'. rivets 8. The inner vwallo the-vbiglit-,portion of the:

shackle is-'arcu=atelyl curvedvand is. formed, with iscrew threads Qra'dapted tocvmesh e with screw threads-'cna tirey valvesstem 1.01ct conventional .construction The arms of the shackle Shave cut a avvay-z` portions .11 f at .f their:v inner@ sides: extending rom'the extremitiesv offthe :arms: ofi the. shackle: forf part .of their length, .thexinner walls of the: cut' awaypor-l tions ll of'thearmsof the ishackle being; parallela and' cooperating` with portions yof,A the bottom and top. lwallsott-he latch casing;

to'.p,roduce a passage way` in .which the head section 12 otalmovablel'lock bolt-inay slide.`

Shouldersfl at theouter ends of the cutaway portions-ll constitute stops fori limitingv the-outward movementof the headsection 12 of;v the locktbolt.v` 12fof theomovin'g lock bolthas a--fvertical depression or out? away, portion-in its outer or fronteface Whicln curves arcuately; and

Thev movable lock bolt alsofcomprises-'anv operatingsection V17 which :comprises 1a body; of)i plate-like 'form adapted -to.-tfrslidabl-y,` in A the A*upper part of thezlockt casing and hav-- This head section The inner faces of the' ing a forwardly projecting central portion 18 received in a recess 19 in the upper part of the head section 12 and connected with the head section 12 by a Vertical pivot element '20. rlhe operating section 17 of the movable lock bolt also comprises a depending flange 2l at the rear end of the body of said operating section. A substantially V- shaped spring 22 has forwardly turned end portions 23 bearing against the inner wall of the back member 3 of the lock casing and has the middle portion thereof bearing against the llange 2l of the operating section of the moving lock bolt, the action of the spring being such as to tend to maintain the movable lock bolt in outshot position. rlhe means for retracting the moving lock bolt into the casing against the action of the spring comprises a tubular guard section 23 having a reduced end portion 2l rotatably supported in an opening` 25 in one of the side walls 2 and having the opposite end portion thereof, indicated at 26, journaled in an opening 27 in the other side wall 2 of the lock casing, the openings 25 and 2 being in alignment transversely of the lock casing. in opening 2S in the side wall of the top section of the lock casing is in register with the opening 27 and has a radial notch 29 in its wall for a purpose to be presently described. A tubular eccentric or tumbler 30 is supported on the tubular guide 23 between tlie flange 2i of the operating section of the moving lock bolt and the rear wall of the head section of the moving lock bolt. rlhe tumbler 30 has portions or flanges which are relatively large diametrically and which protrude into openings, such as indicated at 32, 33 and 3l respectively in the body of the operating section of the lock bolt, whereby the tumbler 30 is held against axial movement relatively to the operating section of the moving lock bolt on the guide member 23. The latter also has flanges which protrude into openings 35 and 3G in the body of the operating section of the movable lock bolt.

The tubular guide 23 and the tumbler 3l) have aligned radial slots as indicated at 37 and 38, respectively, and when these slots 37 and 38 are in alignment with the body 29, the blade of a key 39 can be inserted in the aligned slots 37 38, 29. The key when fully inserted in the aligned slots of the tubular guide 23 and the tumbler 30 can be manipulated to turn the tubular guide and the tumbler thereon from the position shown in Figures 3 and l in a clockwise direction until the tumbler shall have contacted with the depending flange 21 of the operating section of the moving latch bolt and shall have caused the moving lock bolt to be shifted rearwardly in the lock casing against the action of the spring 22. This will cause the head section of the moving lock bolt to move Y the tire valve stem and when the lock has been applied to the portion of the tire valve stem that extends inwardly from the inner felly of a wheel l0, it is obvious that the tire lll to which the tire valve stem is oined and which is mounted on the rim of the wheel cannot be removed from the wheel without serious injury to the tire.

lt will be observed that the lower face of the top 4 and the upper face of the bottom l of the lock casing may be suitably reccssed, as at l2 and 43, respectively to permit turning movement of the eccentric 30 about the axis of the tubular guide and support 23.

GbviOuSly, my invention is susceptible of embodiment in forms other than that illustrated in the accompanying drawing and I therefore consider as my own all such modilications and adaptations thereof as fairly fall within the scope of the appended claims.

l claim 1. i lock comprising a casing, a lock bolt slidable to and from position to extend from an opening in the wall of a lock casing, said lock bolt having a flange at its inner end, a substantially tubular guide extendingl transversely of the casing forwardly of said flange, a tubular eccentric mounted on said tubular guide, said tubular guide and said eccentric having aligned radial slots for the reception of a portion of the blade of a key for turning said tubular guide and eccentric about the axis of the tubular guide, said eccentric being adapted to contact with the flange of said lock bolt to move said lock bolt rearwardly in the casing, and spring means acting on said flange of the lock bolt to urge. said lock bolt out-ward, said tubular guide and said tubular eccentric having diametrically enlarged portions entering slots inV said movable lock bolt for preventing longitudinal movement of said tubular guide and said tubular eccentric in said casing.

2. A lock having a casing comprising two cooperative sections, one of said sections comprising a bottom having upstanding side walls and an upstanding rear end wall, the other section comprising a top wall and a pair of depending side walls straddling` the side walls of the first section, said sections being secured together, a shackle substantially of U-shape and having the arms thereof disposed within the lock casing and secured to the latter, and a lock bolt having a head l portion movable between the arms of said shackle, said head portion of the lock bolt and the inner wall of the bight portion 01:" the shackle having teeth on confronting portions thereof lor engaging with the threads of a tire valve stem, said movable lock bolt also comprising an operating section pivotally attached to the head section and having a flange at its inner end, and a key-operable eccentric within the lock casing adapted to engage with the rearward end o1"- the head section or the lock bolt to project the lock bolt to ontshot position, said eccentric being adapted to engage with the lange of the operating section of the movable lock bolt to retract the movable lock bolt into the lock casing, and a spring within the lock casing engaging with said i'lange of the lock bolt and acting to urge said movable lock bolt outward.

3. A lock having a casing comprising two cooperative sections, one of said sections comprising a bottom having npstanding side walls and an upstanding rear end wall, the other section comprising a top wall and a pair of depending side walls straddling the side walls of the first section, said sections being secured together, a shackle substantially of U-shape and having the arms thereof disposed within the lock casing and secured to the latter, and a lock bolt having a head portion movable between the arms of said shackle, said head portion of the lock bolt and the inner wall of the bight portion of the shackle having teeth on confronting portions thereof for engaging with the threads of a tire valve stem, said movable lock bolt also comprising an operating section pivotally attached to the head section and having a flange at its inner end, and a ke7 operable eccentric within the lock casing adapted to engage with the rearward end ot the head section ot' the lock bolt to project the lock bolt to outshot position, said eccentric being adapted to engage with the flange of the operating section of the movable lock bolt to retract the movable lock bolt into the look casing, and a spring within the lock casing engaging with said flange of the lock bolt and acting to urge said movable lock bolt outward, the arms or" said shackle having stops for engaging with said head section of the movable lock bolt to limit the outward movement ot the latter.

BnLrsARIo FIERRO. 

